http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Numerical visualization of mixing in a circular chamber by two opposite impinging jets
하미드 카바시안,김영우,이인범,한범정,정용채,김경천,Karbasian, Hamidreza,Kim, Youngwoo,Lee, In Bum,Han, Beom Jeong,Jeong, Yong Chai,Kim, Kyung Chun The Korean Society of Visualization 2016 한국가시화정보학회지 Vol.14 No.3
In this study, the mixing process of two distinct flow is numerically investigated. Two flow with different physical properties (resin and hardener) are mixed through the opposing mixing jets. At a high pressure mixing process, the high speed flow is provided by two in-line nozzles. In the case of numerical modeling, Reynolds-Averaged Navier-Stokes Equations (RANS) is conducted to model the flow pattern inside the chamber. Additionally, SST k-omega turbulence model is selected to predict the kinetic energy of flow in impingement zone. The results show that mixing of two distinct flows would be efficient if the velocity of jet is high enough and nozzle diameter is a predominant parameter. Also, this velocity would create higher shear stress between two distinct flows which increases the mixing quality as well as strength of formed vortices. Eventually, the histogram of concentration fraction of resin is examined in order to show the quality of mixing and the range of concentration fractions in the output of chamber.
Numerical visualization of mixing in a circular chamber by two opposite impinging jets
Hamidreza Karbasian(하미드 카바시안),Youngwoo Kim(김영우),In Bum Lee(이인범),Beom Jeong Han(한범정),Yong Chai Jeong(정용채),Kyung Chun Kim(김경천) 한국가시화정보학회 2016 한국가시화정보학회지 Vol.14 No.3
In this study, the mixing process of two distinct flow is numerically investigated. Two flow with different physical properties (resin and hardener) are mixed through the opposing mixing jets. At a high pressure mixing process, the high speed flow is provided by two in-line nozzles. In the case of numerical modeling, Reynolds-Averaged Navier-Stokes Equations (RANS) is conducted to model the flow pattern inside the chamber. Additionally, SST k-omega turbulence model is selected to predict the kinetic energy of flow in impingement zone. The results show that mixing of two distinct flows would be efficient if the velocity of jet is high enough and nozzle diameter is a predominant parameter. Also, this velocity would create higher shear stress between two distinct flows which increases the mixing quality as well as strength of formed vortices. Eventually, the histogram of concentration fraction of resin is examined in order to show the quality of mixing and the range of concentration fractions in the output of chamber.